Retaining means fob furnace wall



Dec. 19, 1933. E. G. BAILEY ET AL 19,033

RETAINING MEANS FOR FURNACE WALL BLocKs Original Filed Oct. 20 1927 F'IGI.

I r ORNEYs Reiuued Dec. 19, 1933 UNITED. STATES 'PATE OFFICE;

' RETAINING MEANS FOR FURNACE WALL BLOCKS Ervln G. Bailey, Easton, r ino Ralph M. Hardgrove, Westfleld, N. L, assignors to Fuller Lehigh Company, Fullerton, Pa'., a corporation of Delaware 9 Claims. (Cl. 122-6) This invention relates to a furnace wall and blocks with means for keeping the fun.ace wall blocks or tile in firm contact with water wall tubes located in the furnace wall, so as to maintain a good contact for the best heat conduction between the tile and tubes, and yet provide an In the drawing reference character 1 indi-- cates water tubes of the furnace wall to which the water wall blocks or tile 2 are applied. Each block or tile 2 is somewhat T-shaped in cross section and is provided with rounded portions or curved surfaces 3 to fit against the tubes and with an extension 4 that projects beyond the center lines of the tubes. The sides of the projecting portions 4 are provided with recesses 5, so shaped that wedge-shaped spaces are provided between the bottoms of the recesses and the surfaces of the tubes, as more clearly indicated at 6 in Fig. 2.

-Keying members are employed to fit in the wedge-shaped spaces or recesses 5 contacting with the surfaces of the tubes and holding the block or tile 2 in good contact with'adjacent tubes 3. These keying members are substantially cyllindrical, and are illustratedin the drawing as rollers '7 but are obviously not limited to the particular construction here presented by way of illustration.

Rollers '7 with square-shaped holes 8 for the insertion of a wrench with a square end are placed in the recesses 5 and by turning the same they are moved into the narrower portions of the spaces, thereby causing the tile 2 to be firmly pressed into contact with the tubes 1. When a roller is rotated it has a movement of translation relative to a tube and the associated tile. Unequal resistances on opposite sides of the rollers will cause this result. As shown there is substantially a point contact between a roller and the tube on one side of the former, while a line contact between the tile and a roller on the opposite side creates the greater resistance.

The rollers 7 can be withdrawn entirely by first turning them to move to the larger portions of the wedge-shaped spaces and then taking them out, whereupon the tile 2 can be easily withdrawn. 7

Changes and modifications can be made without departing from the spirit or scope of the invention. It is to be understood that where the word tile is used in the specification and claims it is meant to include blocks as well, that may be made entirely of metal, or composite blocks made of metal and refractory material.

We claim: I

1. In a furnace wall, water tubes, tile having a portion-between said tubes extending beyond the center line thereof, recesses in the sides of said extending portion, and rollers between said recesses and tubes for keeping said tile in place.

2. In a furnace wall, water tubes, tile having a portion between said tubes extending beyond thecenter line thereof, recesses in the sides of said extending portion, having the bottoms thereof at an angle to the surfaces of the tubes, and rollers between said recesses and tubes for keeping said tile in place.

3. In a furnace wall, water tubes, tile having a portion between said tubes extending beyond the center line thereof,- recesses in the sides of said extending portion, so shaped as to provide wedge shaped spaces between the bottoms of the recesses and the surfaces of the tubes, and rollers between said recesses and tubes for keeping said tile in place.

4. In a furnace wall, water tubes, tile having a portion between said tubes extending beyond the center line thereof, recesses in the sides of said extending portion, and rollers between said recesses and tubes for keeping said tile in place, said rollers being provided with non-circular holes in the ends thereof.

5. In a furnace wall, water tubes, tile having a portion between said tubes extending beyond the centerline thereof, recesses in the sides of said extending portion, and rollers between said recesses and tubes for keeping said tile in place, the axes of said rollers being at an angle to the axes of the tubes.

6. In a furnace wall, water tubes, tile having curved portions contacting with said tubes and a portion between said tubes extending beyond the center line thereof, recesses in the sides of said extending portion, and rollers between said recesses and tubes for keeping said tile in place.

I. In a furnace, a row of spaced fluid conducting tubes, wall blocks having extensions located between adjacent tubes, and clamping members rotatably interposed relative to inclined surfaces of the extensions and the tubes, the rotation of said members causing them to have movement of translation relative to the blocks to tighten them against the tubes. a

8. In a furnace, a row of spaced fluid conducting tubes, wall blocks having extensions located between adjacent tubes, and rotatable clampingmembers abutting inclined surfaces 01' the extensions and the tubes, the rotation of said members causing them to have movement oi transla- 7 tion relative to the blocks to tighten them against the tubes.

9. Ina furnace, arow otspacedfluid conducting tubes, wail blocks having extensions located between adjacent tubes, and cylindrical clamping members rotatably interposed relative to inclined surfaces the extensions and the tubes, andabuttingagainst those surfaces and the tubes the rotation of said members causing them to have movement of translation relative to the blocks to tighten them against the tubes.

ERVIN' G. BAILEY. RALPH M. HARDGROVE. 

